Please don't spam. Bringing these things up and posting "What do you think of bit X?" is fine. Spamming links is not.

"Owl," said Rabbit shortly, "you and I have brains. The others have fluff. If there is any thinking to be done in this Forest - and when I say thinking I mean thinking - you and I must do it." - A. A. Milne, The House at Pooh Corner

This is another thing I've been noticing in the last few years too; IslamSpam

I used to run a website between 2006 and 2008 and it had 14 religious missionaries sign up to spam links in the time the forum was online (which was about dinosaurs and only had 50 or so members, so like wtf?), 12 of which were Islamic. (the others two were seventh day adventists)
But another website I ran back in 2002 and all of the linkspam missionaries were Catholic.